Sequence Calculations (Recur); Sequence Calculation Overview - Casio fx-5800P User Manual

a a a
–1
11 12 13
a a a
=
21 22 23
a a
a a a
11
31 32 33
Important!
• Matrix inversion is supported for a non-zero square matrix only.
• Use the !) (
Example: To invert the matrix
This example assumes that Mat C contains
A Squaring a Matrix
You can use the procedure shown below to square a matrix.
Important!
Use the x key to specify the squaring operation.
Example: To square the matrix
This example assumes that Mat C contains

Sequence Calculations (RECUR)

To perform the example operations in this section, fi rst select RECUR (
calculation mode.

Sequence Calculation Overview

You can use either of the two following sequence types to create a sequence table.
a
Type Sequence
n
With this sequence type, you input the general term of the sequence (
with a sequence start value and end value.
a
Type Sequence
n
+1
With this sequence type, you input the recursion formula for two-term recursion (
f a
( )), along with a sequence start value and end value.
n
a a a a
–
22 33 23 32
a a a a
– +
21 33 23 31
a a a a
–
21 32 22 31
a a a a a
+ +
22 33 12 23 31
–1 –1
x
) key to input " ".
1 –2
.
5 0
1 –2
5 0
a a a a a
– +
12 33 13 32 12
a a a a a
– –
11 33 13 31 11
a a a a a
– +
11 32 12 31 11
a a a a a
– –
13 21 32 13 22 31
1 –2
.
5 0
!) (
Mat C
.
1 –2
.
5 0
Mat C
E-65
a a a
–
23 13 22
a a a
+
23 13 21
a a a
–
22 12 21
a a a a a a
–
12 21 33 11 23 32
–1
x
)
x
6 ) as the
a
n
f n
= ( )), along
a
=
n
+1